Fluid, rolling, air resistance, and not sure about the last one.
Answer:
XX
Explanation:
A women's phenotype will always stay the same as XX.
Answer:
6==. During spermatogenesis, four sperm result from each primary spermatocyte, which divides into two haploid secondary spermatocytes; these cells will go through a second meiotic division to produce four spermatids